Two Doubler Hdu Installation With Pg-Flex - ADC 2 User Manual

PG-Flex Deployment
With two doublers, four sets of auxiliary power pairs must be installed
between COT and the RT. These auxiliary power pairs must be the same wire
gauge (or larger) as the pairs used for HDSL and power.
PG-Flex
Span 1
COT
HDSL
Figure 3. Two Doubler HDU Installation with PG-Flex
PG-Flex systems do not support doubler loopbacks.
The PG-Flex system can operate with a number of other systems, sharing the
same cable binder group, such as:
•
T1 (1.544 Mbps capability)
•
POTS
•
DDS
•
Other PG-Flex systems
With doublers, PG-Flex CO line units produce ±125V to ±130V on the HDSL
and auxiliary power pairs. At least ±75V is required at the RT for ringer
voltage and POTS loop current to meet specification.
Refer to the PG-Flex COT shelf, RT enclosure, and line unit practices for
additional information on PG-Flex powering and auxiliary power pair
requirements (see
8
Auxiliary Power Pairs
Doubler 1
Span 2
HDU-409-L2
HDSL
HDU-409-L3
"Documentation" on page
April 30, 2003
Doubler 2
Span 3
HDU-409 L2
HDSL
HDU-409-L3
iii).
HDU-409 Lists 1, 2, and 3
LTPH-UM-1234-01
PG-Flex
RT
H0075-A